San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Only hotel where you can legally launder money.

Half of a house.

Beautiful public park off the beaten path and away from tourists.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

A pub that is literally in the middle of nowhere, but continues to do business.

This beach runway is off limits during high tide.

A standing relief of a Norman knight whose posture marks him as a Crusader.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

London's smallest police station is barely the size of a phone booth.

Concrete balls on wires constructed to stop train surfing in Indonesia.

Sacred waters rescued from the wrath of a volcano.

A licentious look into Singapore's past, full of disorderly bric-a-brac and disreputable characters.

The celebrated eyesore created by starry-eyed sweethearts.

Largest lake in Great Britain measured by surface area.

A bay of elaborate, historic toilets are held in high esteem at this Scottish dock.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

A six-ton wedding present for the King of the Scots.