These are the world's most physically demanding landmarks
Some of the world's attractions take a bit of extra effort to see.
Ancient monuments, historic cathedrals and sacred temples were not built with accessibility in mind.
Pure Gym has put together a ranking of the world's most physically demanding landmarks.
They used factors including the number of steps, the elevation change during the ascent of the landmark, and the average temperature of the location to produce rankings.
"Many people will know the feeling of climbing hundreds of stairs and reaching the top of a viewpoint feeling like you've just completed a gym class, so we wanted to take a closer look and find out which landmarks are the most physically demanding overall," the company said.
Here's the top 15 list.
15. Heaven's Gate, China
Heaven's Gate or Tianmen Mountain in China is a Tianmen Mountain National Park, Zhangjiajie, in the northwestern part of Hunan Province,
It has a 999 step entrance known as "the Stairway to Heaven".
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It does have a cable car part of the way up, but you have to walk the final ascent.
14. Seville Cathedral, Spain
The World Heritage listed Cathedral of Saint Mary of the See in the Spanish city of Seville was finished in 1519.
There are 700 steps to reach the top of the tower, making it a bit of a workout.
13. Guatapé Rock, Colombia
That incredible staircase clinging to the side of Guatapé Rock has 740 steps.
But it's the steepness which helped to put it at number 13 on the list.
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12. Sydney Harbour Bridge, Australia
The familiar landmark in Sydney Harbour can be climbed via attraction BridgeClimb.
It has a hefty 1332 steps , which curve around the arch.
You can also climb the pylons for free.
11. Vindhyagiri Steps, India
You'll need to tackle 660 steps in the heat of India at the rock cut steps leading to the Gomateshwara temple, in Karnataka, India.
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10. Batu Caves, Malaysia
You'll have to climb 200 steps to get to Batu caves in Kuala Lumpur, Malaysia.
But it's fairly steep, and the weather is generally pretty steamy too.
It ranked number 10 on the list.
9. Castle of the Moors, Portugal
The Castle of the Moors has 500 steps, and an elevation of 400m, making it a quite taxing spot to see.
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8. Petra Monastery, Jordan
Seeing the monastery at Petra in Jordan is on many people's bucket lists.
But beware- you'll need to climb 800 steps at an elevation of 22 metres in the Middle East heat to tick it off.
7. Park Guell, Spain
Gaudi's Park Guell in Barcelona, Spain is a colourful wonder to see
There are an incredible 1984 steps to tackle to get to the top however.
You have to buy tickets as only 1400 people per day are allowed to visit.
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