Today we continue to introduce the remaining five rare toilets.

SS Relief-Casitas Municipal Water Department spent $50,000 to install the SS Relief in 1991 so that sailors can drop anchor and use the facilities at any time. While swimming is not allowed in the reservoir, visitors can kayak to two aviation-style toilets.

Madeleine Toilette, France - Visitors to the Place de la Madeleine in the 8th arrondissement of Paris often head straight to the famous Church of Sainte-Marie-Madeleine. However, hidden behind a nondescript wrought iron fenced area lies another less appreciated architectural marvel. The Madeleine Toilets is a designated historic monument dating back to 1905. At the time, it was considered indecent to have a toilet next to a church, so the authorities hid it underground. However, walking into this Art Nouveau toilet, one can't help but wonder why anyone would want to hide it. Warm mahogany, pristine stained glass and tile mosaics all add to the Belle Époque ambience.

Minquiers, Jersey - On a rocky outcrop nine miles south of Jersey lies a group of smaller islands - known as the Minquiers Islands. On the largest of these islands, there is a small shed that has the distinction of being the most southerly toilet in Britain. To go to the toilet here is to make history.

Canistrum Toilets, Australia - These toilets were inspired by traditional Aboriginal basket weaving and were chosen from nearly 200 entries. Not only are the toilets visually impressive, they are also designed to withstand seasonal flooding from the nearby Mary River.

Mick Jagger's Urinal in America - In the unisex restroom of this oldest bar in San Diego's Gaslamp Quarter, a gold plaque proudly reads: "Mick Jagger of the Rolling Stones used this urinal during his concert at Petco Park on November 11, 2005."The urinals are surrounded by a Cali-style red lip graphic and usually have a second sign asking patrons to respect the singer's urination area.