Enclaves and more enclaves...

I've just found out about a rather interesting geopolitical anomaly. An enclave is a country or a part of a country which is completely surrounded by another country. For example, the country Lesotho is completely surrounded by the larger South Africa. The Spanish town of Llívia is completely surrounded by France (it is thus also an exclave: a part of a country which is not connected to the rest of it). So far, not so interesting. However, there are two enclaves which are interesting. The enclave of Madha is a part of Oman but is completely surrounded by the United Arab Emirates. However, inside of Madha is another enclave, called Nahwa, which is part of the United Arab Emirates, but completely surrounded by Omani territory (that is, Madha). I think this is the only place in the world where there is an enclave inside an enclave.