Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

This eatery is emblematic of the connection between Jamaica and Nubia.

A marvel of Byzantine engineering under the streets of Istanbul.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

One of the largest bamboo bridges in Asia, located right next to a bamboo school.

Three wildly colorful calderas top this otherworldly volcano chain.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."